I'm lost when I try to figure out what exaclty is Java.... I need your help

Hi, I know that java is OOP, Multiplatform, etc, etc...
But when I try to look on google for jobs about java or "learn Java" what "Should I know in java"... I always found... whebshpere, oracle, linux, jboss, glassfish, opensolaris, struts, hibernate, spring, eclipse, netbeans, jidea, and so on!!!...
I'm lost... I will be sincere ...
I've started thank for a friend in a world of programming with .NET (ASP.NET SQL .NET Silverlight Windows Server) and was good BUT i feel inside that I prefer Java.
I don't know why but with java I feel free, i think will be a good technology for a long time.
But some things make my crazy.
I cant found a fast path or the right path without getting mess. Like I posted above.
So I need your help, if You are an advance programmer... tell what Should I learn ( essencially ) to get a good job. Oracle + Java ? linux + oracle + java? websphere + java? eclipse or netbeans?? all thouse things are awesome... but I am a HUMAN... I can't learn thouse all things and less in little time.... I just want to have a good preparation for to start to look a job in early time.
I look forward yours answers.
Thanks community.

vidix wrote:
Hi, I know that java is OOP, Multiplatform, etc, etc...
So I need your help, if You are an advance programmer... tell what Should I learn ( essencially ) to get a good job. Oracle + Java ? linux + oracle + java? websphere + java? eclipse or netbeans?? all thouse things are awesome.The answer to that depends on what you want to do at work. I know great developers that never have written a single SQL statement, and I'm always trying to stay away from everything that has a web interface :)
Decide what you want to do at work, and then figure out what technologies you need to know.

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